List-I (Types of adaptation) | List-II (Examples) | ||
1 | Biochemical adaptation | p | Desert lizards |
2 | Behavioural adaptation | q | Deep sea fishes |
3 | Physiological adaptation | r | Opuntia |
4 | Morphological adaptation | s | Kangaroo rats |
Adaptations enable organisms to thrive in diverse environmental conditions.
Matching adaptations with examples:
1. Biochemical adaptation - q. Deep sea fishes: Produce antifreeze proteins to survive cold depths.
2. Behavioral adaptation - p. Desert lizards: Bask in sun to regulate body temperature.
3. Physiological adaptation - s. Kangaroo rats: Concentrated urine minimizes water loss.
4. Morphological adaptation - r. Opuntia: Spines (modified leaves) reduce water loss.
The correct matching is: (C) 1-q, 2-p, 3-s, 4-r
Other options are incorrect because: - (A) Mismatches behavioral and morphological adaptations - (B) Incorrectly links all adaptation types - (D) Reverses physiological and biochemical examples
Biochemical adaptation: This involves changes at the molecular level, such as enzyme adaptations in organisms to survive extreme conditions. For example, desert lizards have enzymes suited to high temperatures.
1 - q (Deep sea fishes).
Behavioral adaptation: Changes in the behavior of organisms to survive in their environment, such as migration patterns or nocturnal activity.
2 - p (Desert lizards).
Physiological adaptation: Changes in an organism’s internal processes, such as cacti storing water.
3 - r (Opuntia).
Morphological adaptation: Physical changes in the structure of an organism to help it survive, such as kangaroo rats evolving to conserve water in deserts.
4 - s (Kangaroo rats).
Thus, the correct matching is 1 - q, 2 - p, 3 - r, 4 - s, which corresponds to Option (C).
The given graph shows the range of variation among population members, for a trait determined by multiple genes. If this population is subjected to disruptive selection for several generations, which of the following distributions is most likely to result?